Predicting the motion of a driver's vehicle is crucial for advanced driving systems, enabling detection of potential risks towards shared control between the driver and automation systems. In this paper, we propose a variational neural network approach that predicts future driver trajectory distributions for the vehicle based on multiple sensors. Our predictor generates both a conditional variational distribution of future trajectories, as well as a confidence estimate for different time horizons. Our approach allows us to handle inherently uncertain situations, and reason about information gain from each input, as well as combine our model with additional predictors, creating a mixture of experts. We show how to augment the variational predictor with a physics-based predictor, and based on their confidence estimators, improve overall system performance. The resulting combined model is aware of the uncertainty associated with its predictions, which can help the vehicle autonomy to make decisions with more confidence. The model is validated on real-world urban driving data collected in multiple locations. This validation demonstrates that our approach improves the prediction error of a physics-based model by 25% while successfully identifying the uncertain cases with 66% accuracy.

本文介绍了一种基于多传感器的变分神经网络方法，用于预测驾驶员车辆的未来轨迹分布。该方法能够处理不确定的情况，并且可以与物理学预测器相结合，提高整个系统的性能。经实验证明，我们的方法可将物理学模型的预测误差提高25％，同时以82％的准确度成功识别不确定情况。

城市路口不确定性感知驾驶员轨迹预测